This paper presents a novel three-dimensional fluid–structure interaction (FSI) approach, where the meshless smoothed particle hydrodynamics (SPH) method is used to simulate motion of incompressible fluid flows, whilst structures are represented by simplified approach based on particle–spring systems. The proposed FSI technique allows use independent spatial–temporal resolutions for and structu...

Due to the convenience and flexibility in modeling complex geometries deformable objects, local ghost particles methods are becoming more popular. In present study, a novel semi-fixed method is proposed for weakly compressible smoothed particle hydrodynamics (WCSPH). comparison with previous methods, new boundary can effectively reduce spurious pressure oscillations smooth flow field. Besides, ...

In this paper, the applications of mesh-free SPH (Smoothed Particle Hydrodynamics) methodology to the simulation and analysis of 3-D hard machining process is presented. A Langrangian SPH based model is carried out using the Ls-Dyna software. Classical Lagrangian, Eulerian and ALE methods such as finite element methods (FEM) cannot resolve the large distortions very well. Conventional finite el...

The present study investigates thermo-mechanical issues associated with the dissimilar friction stir welding process of AA6061 and AA5086 aluminum alloys through smoothed-particle hydrodynamics (SPH) simulation experimental investigations. results demonstrate that presented model accurately predicts thermal history during process. Furthermore, both data indicate when alloy is located on advanci...

We have performed Smoothed Particle Hydrodynamic (SPH) simulations to study the response of molecular clouds in the Galactic disk to a rotating bar and their subsequent evolution in the Galactic Center (GC) region. The Galactic potential in our models is contributed by three axisymmetric components (massive halo, exponential disk, compact bulge) and a non-axisymmetric bar. These components are ...

This paper presents a hybrid Smoothed Particle Hydrodynamics (SPH) – Finite Element Method (FEM) solver for metal cutting simulations on Graphics Processing Units (GPU). For the first time in chip formation simulation, heat transfer between an SPH model of workpiece, and transient FEM temperature tool, is established. validation, performance modeled thermal contact two numerical domains compare...

Lagrangian particle-based smoothed particle hydrodynamics (SPH) is increasingly widely used in landslide modelling. This paper investigates four important issues not addressed by previous studies on SPH modelling of large-scale landslides, i.e., convergence property, influence constitutive parameters, scale effect and friction reduction, different treatments the viscous effect. The GPU-accelera...

Large scale cosmological simulations such as galaxy and star formation are of great interest to cosmologists. These simulations are done by consideration of relativistic, compressible, discontinuous fluids. Many techniques from particle based to adaptive meshing have been explored, each with advantages and disadvantages. Here, the limitations of centroidal Voronoi tessellations with these astro...